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EP0754911A2 - Infrared rays emitter with a catalytic burner - Google Patents

Infrared rays emitter with a catalytic burner Download PDF

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Publication number
EP0754911A2
EP0754911A2 EP96420083A EP96420083A EP0754911A2 EP 0754911 A2 EP0754911 A2 EP 0754911A2 EP 96420083 A EP96420083 A EP 96420083A EP 96420083 A EP96420083 A EP 96420083A EP 0754911 A2 EP0754911 A2 EP 0754911A2
Authority
EP
European Patent Office
Prior art keywords
box
oven
catalytic
impregnated
turbine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96420083A
Other languages
German (de)
French (fr)
Other versions
EP0754911A3 (en
EP0754911B1 (en
Inventor
Michel Charmes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
A J C
Original Assignee
A J C
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by A J C filed Critical A J C
Publication of EP0754911A2 publication Critical patent/EP0754911A2/en
Publication of EP0754911A3 publication Critical patent/EP0754911A3/en
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Publication of EP0754911B1 publication Critical patent/EP0754911B1/en
Anticipated expiration legal-status Critical
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F23C5/02—Structural details of mounting
    • F23C5/06—Provision for adjustment of burner position during operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/12—Radiant burners
    • F23D14/18—Radiant burners using catalysis for flameless combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/02—Heating arrangements using combustion heating
    • F26B23/022—Heating arrangements using combustion heating incinerating volatiles in the dryer exhaust gases, the produced hot gases being wholly, partly or not recycled into the drying enclosure
    • F26B23/024—Heating arrangements using combustion heating incinerating volatiles in the dryer exhaust gases, the produced hot gases being wholly, partly or not recycled into the drying enclosure by means of catalytic oxidation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
    • F26B3/30—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun from infrared-emitting elements
    • F26B3/305—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun from infrared-emitting elements the infrared radiation being generated by combustion or combustion gases

Definitions

  • the present invention relates to infrared ray emitters with catalytic burner and it relates more particularly to such an apparatus which constitutes a monobloc assembly intended to be installed in an oven or the like.
  • Such infrared ray emitters are known which are intended to be installed in ovens, tunnels or ovens intended more particularly for drying or polymerizing liquid or powder paints on the most diverse supports.
  • catalytic burners on the internal walls of ovens or the like, each comprising a frame which supports a catalytic structure composed of an element impregnated with a catalytic combustion material.
  • fuel gas supply pipes which terminate in each burner at a Venturi ensuring the air / gas premix, electric current supply conductors for the pre resistances.
  • the improvements which are the subject of the present invention aim to remedy these drawbacks and to allow the production of an infrared ray emitter with catalytic burner which constitutes a monobloc assembly installed inside an oven or the like.
  • the set of components allows operation at high temperatures, of the order of 250 ° C, while comprising means for recycling the gaseous medium contained by the furnace by flameless oxidation of the solvents released by the paint.
  • the box is mounted between two consoles secured to one of the walls of the oven or the like, one of the consoles being assembled to a base to which the casing of the air generator turbine is fixed.
  • This turbine is wedged on a shaft which crosses the wall of the furnace on which the brackets are fixed to cooperate outside of it with the drive device of said turbine.
  • the box is mounted orientable relative to the consoles.
  • Fig. 1 is an exploded perspective view of an infrared ray emitter according to the invention.
  • Fig. 2 is a section along II-II (fig. 1).
  • Fig. 3 is a horizontal section along III-III (Fig. 2) of an oven or the like inside which is installed an infrared ray emitter according to the invention.
  • the infrared ray emitter shown in fig. 1 essentially comprises a box 1 produced in the form of an elongated parallelepiped closed on five of its faces, one of the large faces being open.
  • a catalytic structure 2 is arranged in the open face 10 of the box 1.
  • This structure is composed of an element 20 impregnated with a catalytic combustion material such as platinum.
  • This element which is permeable to the gaseous mixture to be burned, consists of an inert support such as fiberglass or the like and capable of withstanding the high temperatures generated by catalytic combustion. We will not return to such a structure which is well known in practice.
  • the element 20 is supported by a frame 21 fixed in a sealed manner relative to the open face 10 of the box 1. It can be seen that the frame 21 is associated with a frame 22 which determines a space corresponding to the section of the large open face 10 of the box 1.
  • a spacer 23 whose ends are fixed to the frame 22 supports a member 24 injecting a combustible gas mixed with air and opening onto the inner face of the element 20, as is well known in practice.
  • the spacer 23 also supports at least one electrical resistance 25 for preheating the impregnated element 20.
  • the box 1 comprises two end flanges 11 and 12 which are respectively fixed to a console 4, 5.
  • Each of these is provided with a ring of smooth holes 40, 50 in each of which a screw 3 can be engaged which is screwed into a threaded hole ccrrespondant 11, 12a of the flanges 11, 12.
  • the bracket 5 is formed as a square, as will be explained better below.
  • the console 5 is assembled to a support plate 6 on which the casing 7 has of an electric fan 7.
  • the impeller 7 b of the electric fan which is located in the casing 7 a is wedged on one end of a shaft 7 c , the other end of which is assembled with the output shaft of the electric motor 7 d of the electric fan 7.
  • the shaft 7 c is oriented perpendicular to the general direction of the box, as will be explained better below.
  • the infrared radiation according to the invention is fixed by its brackets 4, 5 of the inner wall 9 has a partition 9 of an oven, suitably insulated tunnel or oven.
  • the console 5 is fixed to the partition 9 by its right-angle part 52 which passes through the shaft 7c of the electric fan 7. The latter passes through this partition in a heat-tight manner by any appropriate means, in particular in a insulating sleeve 53.
  • the pipe 24 has the injection member 24 supply fuel gas and the power conductors of the resistors 25 through a sealed manner to heat the partition wall 9.
  • the tube 24 a and the conductors come from a control box 8 which is fixed to the outer wall 9 b of the partition 9, so as not to be exposed to the heat prevailing inside the oven or the like.
  • the outlet orifice of the casing 7 has opens into a corresponding opening 60 of the support plate 6 which is centered on the longitudinal geometrical axis referenced X of the box 1.
  • the console 5 Inside the ring of holes 50 , the console 5 has a passage 51 whose center is on the axis X.
  • the flange 11 which has a central cutout 11 b corresponding to the passage 51.
  • the flange 12 is full, that is to say, not drilled.
  • the air sucked into the oven enclosure or the like is expelled inside the box 1 through the opening 60, the passage 51 and the cutout 11b in such a way that the box 1 constitutes a distribution chamber for the air expelled over the entire surface of the element 20.
  • the design of the transmitter according to the invention allows its mounting in existing ovens or the like without significant modifications thereof and with a very simple installation.
  • the air sent into the box 1 is that which is inside the oven or the like, the solvents emitted by the drying or polymerization of the paints are burnt at the level of the element 20 impregnated with 'a catalytic material, so that the gaseous medium contained by the oven is automatically recycled intensively.
  • the one-piece transmitter according to the invention can withstand high temperatures, of the order of 250 ° C. .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Microbiology (AREA)
  • Sustainable Development (AREA)
  • Gas Burners (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'émetteur est constitué par un caisson (1) renfermant une structure catalytique (20) disposée dans une face ouverte (10) de ce caisson. Le caisson associé à un ventilateur (7) forme un ensemble monobloc fixé sur la paroi intérieure (9a) de la cloison (9) d'un four ou analogue au moyen de deux consoles (4,5). Le moteur d'entraînement (7d) du ventilateur et le coffret de commande (8) sont fixés sur la paroi extérieure (9b) de ladite cloison de sorte que l'émetteur peut fonctionner à des températures élevées, son ventilateur recyclant le milieu gazeux renfermé par le four.

Figure imgaf001
The transmitter consists of a box (1) containing a catalytic structure (20) arranged in an open face (10) of this box. The box associated with a fan (7) forms a one-piece assembly fixed to the interior wall (9a) of the partition (9) of an oven or the like by means of two consoles (4,5). The fan drive motor (7d) and the control box (8) are fixed to the outer wall (9b) of said partition so that the transmitter can operate at high temperatures, its fan recycling the enclosed gaseous medium by the oven.
Figure imgaf001

Description

La présente invention est relative aux émetteurs de rayons infrarouges à brûleur catalytique et elle concerne plus particulièrement un tel appareil qui constitue un ensemble monobloc destiné à être installé dans un four ou analogue.The present invention relates to infrared ray emitters with catalytic burner and it relates more particularly to such an apparatus which constitutes a monobloc assembly intended to be installed in an oven or the like.

On connaît de tels émetteurs de rayons infrarouges destinés à être installés dans des fours, des tunnels ou étuves destinés plus particulièrement au séchage ou à la polymérisation des peintures liquides ou en poudre sur des supports les plus divers.Such infrared ray emitters are known which are intended to be installed in ovens, tunnels or ovens intended more particularly for drying or polymerizing liquid or powder paints on the most diverse supports.

Suivant la technique connue, on dispose sur les parois internes des fours ou analogues des brûleurs catalytiques comportant chacun un cadre qui soutient une structure catalytique composée d'un élément imprégné d'une matière catalytique de combustion. A l'extérieur des cloisons des fours ainsi équipés, il est prévu des tuyauteries d'amenée du gaz combustible qui aboutissent dans chaque brûleur à un Venturi assurant le prémélange air/gaz, des conducteurs d'amenée du courant électrique pour les résistances de pré-chauffage des structures catalytiques et enfin des gaines destinées à diffuser de l'air engendré par un générateur d'air à turbine de manière à diffuser de l'air sur la surface des structures catalytiques.According to the known technique, there are catalytic burners on the internal walls of ovens or the like, each comprising a frame which supports a catalytic structure composed of an element impregnated with a catalytic combustion material. Outside the partitions of the ovens thus equipped, there are provided fuel gas supply pipes which terminate in each burner at a Venturi ensuring the air / gas premix, electric current supply conductors for the pre resistances. -heating of the catalytic structures and finally of the sheaths intended to diffuse air generated by a turbine air generator so as to diffuse air on the surface of the catalytic structures.

On comprend qu'une telle construction est complexe, de telle sorte qu'un four ou analogue ainsi équipé est d'un prix de revient très élevé.It is understood that such a construction is complex, so that an oven or the like so equipped is very expensive.

Les perfectionnements qui font l'objet de la présente invention visent à remédier à ces inconvénients et à permettre la réalisation d'un émetteur de rayons infrarouges à brûleur catalytique qui constitue un ensemble monobloc installé à l'intérieur d'un four ou analogue dont l'ensemble des composants permet un fonctionnement à des températures élevées, de l'ordre de 250°C, tout en comportant des moyens à recycler le milieu gazeux renfermé par le four par oxydation sans flamme des solvants dégagés par la peinture.The improvements which are the subject of the present invention aim to remedy these drawbacks and to allow the production of an infrared ray emitter with catalytic burner which constitutes a monobloc assembly installed inside an oven or the like. 'the set of components allows operation at high temperatures, of the order of 250 ° C, while comprising means for recycling the gaseous medium contained by the furnace by flameless oxidation of the solvents released by the paint.

A cet effet, l'émetteur de rayons infrarouges à brûleur catalytique suivant l'invention destiné à être installé dans un four ou analogue comprend :

  • un caisson dont une grande face est ouverte ;
  • une structure catalytique disposée dans la face ouverte du caisson ;
  • un organe d'injection de gaz combustible ;
  • un générateur d'air à turbine envoyant de l'air sous pression dans le caisson qui constitue chambre de distribution d'air sur toute la structure catalytique ;
  • un système électrique de préchauffage de la structure catalytique.
  • la turbine d'un générateur d'air, dont le dispositif d'entraînement est situé à l'extérieur du four, ainsi que les commandes électriques du système électrique de préchauffage.
To this end, the emitter of infrared rays with catalytic burner according to the invention intended to be installed in an oven or the like comprises:
  • a box with a large open side;
  • a catalytic structure arranged in the open face of the box;
  • a fuel gas injection member;
  • a turbine air generator sending pressurized air into the box which constitutes an air distribution chamber over the entire catalytic structure;
  • an electrical system for preheating the catalytic structure.
  • the turbine of an air generator, the drive device of which is located outside the oven, as well as the electrical controls of the electrical preheating system.

Suivant une forme de réalisation avantageuse, le caisson est monté entre deux consoles solidaires d'une des parois du four ou analogue, l'une des consoles étant assemblée à une embase à laquelle est fixée le carter de la turbine du générateur d'air. Cette turbine est calée sur un arbre qui traverse la paroi du four sur laquelle les consoles sont fixées pour coopérer à l'extérieur de celui-ci avec le dispositif d'entraînement de ladite turbine. De manière préférée, le caisson est monté orientable par rapport aux consoles.According to an advantageous embodiment, the box is mounted between two consoles secured to one of the walls of the oven or the like, one of the consoles being assembled to a base to which the casing of the air generator turbine is fixed. This turbine is wedged on a shaft which crosses the wall of the furnace on which the brackets are fixed to cooperate outside of it with the drive device of said turbine. Preferably, the box is mounted orientable relative to the consoles.

Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer :The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing:

Fig. 1 est une vue éclatée en perspective d'un émetteur de rayon infrarouges conforme à l'invention.Fig. 1 is an exploded perspective view of an infrared ray emitter according to the invention.

Fig. 2 en est une coupe suivant II-II (fig. 1).Fig. 2 is a section along II-II (fig. 1).

Fig. 3 est une coupe horizontale suivant III-III (fig. 2) d'un four ou analogue à l'intérieur duquel est installé un émetteur de rayons infrarouges suivant l'invention.Fig. 3 is a horizontal section along III-III (Fig. 2) of an oven or the like inside which is installed an infrared ray emitter according to the invention.

L'émetteur de rayons infrarouges représenté en fig. 1 comprend essentiellement un caisson 1 réalisé sous la forme un parallélipipède allongé fermé sur cinq de ses faces, l'une 10 des grandes faces étant ouverte.The infrared ray emitter shown in fig. 1 essentially comprises a box 1 produced in the form of an elongated parallelepiped closed on five of its faces, one of the large faces being open.

Comme illustré en fig. 2, une structure catalytique 2 est disposée dans la face ouverte 10 du caisson 1. Cette structure est composée d'un élément 20 imprégné d'une matière catalytique de combustion telle que du platine. Cet élément, qui est perméable au mélange gazeux à brûler, est constitué d'un support inerte tel que de la fibre de verre ou analogue et propre à résister aux températures élevées engendrées par la combustion catalytique. On ne reviendra pas sur une telle structure qui est bien connue dans la pratique.As illustrated in fig. 2, a catalytic structure 2 is arranged in the open face 10 of the box 1. This structure is composed of an element 20 impregnated with a catalytic combustion material such as platinum. This element, which is permeable to the gaseous mixture to be burned, consists of an inert support such as fiberglass or the like and capable of withstanding the high temperatures generated by catalytic combustion. We will not return to such a structure which is well known in practice.

L'élément 20 est soutenu par un cadre 21 fixé de manière étanche par rapport à la face ouverte 10 du caisson 1. On observe que le cadre 21 est associé à un châssis 22 qui détermine un espace correspondant à la section de la grande face ouverte 10 du caisson 1. Une entretoise 23 dont les extrémités sont fixées au châssis 22 soutient un organe 24 d'injection d'un gaz combustible mélangé à de l'air et débouchant sur la face intérieure de l'élément 20, comme cela est bien connu dans la pratique. L'entretoise 23 soutient encore au moins une résistance électrique 25 de préchauffage de l'élément imprégné 20.The element 20 is supported by a frame 21 fixed in a sealed manner relative to the open face 10 of the box 1. It can be seen that the frame 21 is associated with a frame 22 which determines a space corresponding to the section of the large open face 10 of the box 1. A spacer 23 whose ends are fixed to the frame 22 supports a member 24 injecting a combustible gas mixed with air and opening onto the inner face of the element 20, as is well known in practice. The spacer 23 also supports at least one electrical resistance 25 for preheating the impregnated element 20.

Comme illustré en fig. 1, le caisson 1 comporte deux flasques extrêmes 11 et 12 qui sont respectivement fixés à une console 4, 5. Chacune de celles-ci est munie d'une couronne de trous lisses 40, 50 dans chacun desquels on peut engager une vis 3 qui vient se visser dans un trou taraudé ccrrespondant 11a, 12a des flasques 11, 12. La console 5 est réalisée sous la forme d'une équerre, comme on l'expliquera mieux plus loin. La console 5 est assemblée à une plaque support 6 sur laquelle est monté le carter 7a d'un électro-ventilateur 7. Ainsi, en modifiant la position angulaire du caisson 1 par rapport aux consoles 4, 5 on peut orienter le caisson dans la direction souhaitée, comme illustré en traits discontinus en fig. 2. La turbine 7b de l'électro-ventilateur qui se trouve dans le carter 7a est calée sur l'une des extrémité d'un arbre 7c dont l'autre extrémité est assemblée à l'arbre de sortie du moteur électrique 7d de l'électroventilateur 7. L'arbre 7c est orienté perpendiculairement à la direction générale du caisson, comme on l'expliquera mieux plus loin.As illustrated in fig. 1, the box 1 comprises two end flanges 11 and 12 which are respectively fixed to a console 4, 5. Each of these is provided with a ring of smooth holes 40, 50 in each of which a screw 3 can be engaged which is screwed into a threaded hole ccrrespondant 11, 12a of the flanges 11, 12. the bracket 5 is formed as a square, as will be explained better below. The console 5 is assembled to a support plate 6 on which the casing 7 has of an electric fan 7. Thus, by modifying the angular position of the box 1 relative to the consoles 4, 5 one can orient the box in the desired direction, as shown in broken lines in fig. 2. The impeller 7 b of the electric fan which is located in the casing 7 a is wedged on one end of a shaft 7 c , the other end of which is assembled with the output shaft of the electric motor 7 d of the electric fan 7. The shaft 7 c is oriented perpendicular to the general direction of the box, as will be explained better below.

Comme illustré en fig. 3, l'émetteur de rayons infrarouges suivant l'invention est fixé par ses consoles 4, 5 sur la paroi interne 9a d'une cloison 9 d'un four, tunnel ou étuve convenablement calorifugée. La console 5 est fixée sur la cloison 9 par sa partie à angle droit 52 qui traversée par l'arbre 7c de l'électro-ventilateur 7. Ce dernier traverse cette cloison de manière étanche à la chaleur par tous moyens appropriés, notamment dans un manchon isolant 53. De même manière, le tuyau 24a d'alimentation de l'organe d'injection 24 de gaz combustible et les conducteurs d'alimentation électrique des résistances 25 traversent de manière étanche à la chaleur la cloison 9. Le tuyau 24a et les conducteurs sont issus d'un coffret de commande 8 qui est fixé sur la paroi extérieure 9b de la cloison 9, de manière à ne pas être exposés à la chaleur régnant à l'intérieur du four ou analogue.As illustrated in fig. 3, the infrared radiation according to the invention is fixed by its brackets 4, 5 of the inner wall 9 has a partition 9 of an oven, suitably insulated tunnel or oven. The console 5 is fixed to the partition 9 by its right-angle part 52 which passes through the shaft 7c of the electric fan 7. The latter passes through this partition in a heat-tight manner by any appropriate means, in particular in a insulating sleeve 53. Similarly, the pipe 24 has the injection member 24 supply fuel gas and the power conductors of the resistors 25 through a sealed manner to heat the partition wall 9. the tube 24 a and the conductors come from a control box 8 which is fixed to the outer wall 9 b of the partition 9, so as not to be exposed to the heat prevailing inside the oven or the like.

En revenant à fig. 1, on ccnstate que l'orifice de sortie du carter 7a débouche dans une ouverture correspondante 60 de la plaque support 6 qui est centrée sur l'axe géométrique longitudinal référencé X du caisson 1. A l'intérieur de la couronne de trous 50, la console 5 comporte un passage 51 dont le centre se trouve sur l'axe X. Il en va de même du flasque 11 qui comporte une découpe centrale 11b correspondant au passage 51. Par contre, le flasque 12 est plein, c'est-à-dire non percé. Ainsi, lorsque la turbine 7b de l'électro-ventilateur 7 est mise en route, l'air aspiré dans l'enceinte du four ou analogue est expulsé à l'intérieur du caisson 1 en traversant l'ouverture 60, le passage 51 et la découpe 11b de telle manière que le caisson 1 constitue une chambre de distribution de l'air expulsé sur toute la surface de l'élément 20.Returning to fig. 1, it is ccnstate that the outlet orifice of the casing 7 has opens into a corresponding opening 60 of the support plate 6 which is centered on the longitudinal geometrical axis referenced X of the box 1. Inside the ring of holes 50 , the console 5 has a passage 51 whose center is on the axis X. The same applies to the flange 11 which has a central cutout 11 b corresponding to the passage 51. By cons, the flange 12 is full, that is to say, not drilled. Thus, when the turbine 7b of the electric fan 7 is started, the air sucked into the oven enclosure or the like is expelled inside the box 1 through the opening 60, the passage 51 and the cutout 11b in such a way that the box 1 constitutes a distribution chamber for the air expelled over the entire surface of the element 20.

La conception de l'émetteur suivant l'invention permet son montage dans des fours ou analogues existants sans modifications importantes de ceux-ci et avec une mise en place très simple. De plus, du fait que l'air envoyé dans le caisson 1 est celui qui se trouve dans l'enceinte du four ou analogue, les solvants émis par le séchage ou la polymérisation des peintures sont brûlés au niveau de l'élément 20 imprégné d'une matière catalytique, si bien que le milieu gazeux renfermé par le four est recyclé automatiquement de manière intense.The design of the transmitter according to the invention allows its mounting in existing ovens or the like without significant modifications thereof and with a very simple installation. In addition, since the air sent into the box 1 is that which is inside the oven or the like, the solvents emitted by the drying or polymerization of the paints are burnt at the level of the element 20 impregnated with 'a catalytic material, so that the gaseous medium contained by the oven is automatically recycled intensively.

Enfin, par suite de la localisation des appareils délicats (moteur électrique, instruments de commande) hors de l'enceinte du four ou analogue, l'émetteur monobloc suivant l'invention peut supporter des températures élevées, de l'ordre de 250°C.Finally, as a result of the location of delicate devices (electric motor, control instruments) outside the oven enclosure or the like, the one-piece transmitter according to the invention can withstand high temperatures, of the order of 250 ° C. .

Il doit d'ailleurs être entendu que la description qui précède n'a été donnée qu'à titre d'exemple et qu'elle ne limite nullement le domaine de l'invention dont on ne sortirait pas en remplaçant les détails d'exécution décrits par tous autres équivalents.It should moreover be understood that the foregoing description has been given only by way of example and that it in no way limits the field of the invention from which one would not depart by replacing the execution details described by all other equivalents.

Claims (4)

Emetteur de rayons infrarouges à brûleur catalytique destiné à être installé dans un four et comprenant : - un caisson dont une grande face est ouverte ; - une structure catalytique composée d'un élément imprégné d'une matière catalytique de combustion, placé dans un cadre lui-même disposé dans la face ouverte du caisson ; - un organe d'injection d'un gaz combustible situé dans le caisson et débouchant sur la face intérieure de l'élément imprégné, ledit organe étant alimenté en gaz par un tuyau ; - un générateur d'air à turbine envoyant de l'air sous pression dans le caisson qui constitue une chambre de distribution d'air sur toute la surface de l'élément imprégné ; - un système électrique de préchauffage de l'élément imprégné. ledit émetteur constituant un ensemble monobloc disposé dans le four et comportant des premiers moyens de fonctionner à des températures élevées de l'ordre de 250°C et des seconds moyens de recycler le milieu gazeux renfermé par le four. Infrared ray emitter with catalytic burner intended for installation in an oven and comprising: - a box with a large open side; - A catalytic structure composed of an element impregnated with a catalytic combustion material, placed in a frame itself disposed in the open face of the box; a member for injecting a combustible gas situated in the box and opening onto the internal face of the impregnated element, said member being supplied with gas by a pipe; - A turbine air generator sending pressurized air into the box which constitutes an air distribution chamber over the entire surface of the impregnated element; - an electrical system for preheating the impregnated element. said emitter constituting a monobloc assembly disposed in the oven and comprising first means of operating at high temperatures of the order of 250 ° C and second means of recycling the gaseous medium contained by the oven. Emetteur de rayons infrarouges à brûleur catalytique suivant la revendication 1, dans lequel le dispositif d'entraînement de la turbine du générateur d'air et les commandes électriques du système électrique de préchauffage sont disposées à l'extérieur dudit four.An infrared ray emitter with a catalytic burner according to claim 1, wherein the turbine generator of the air generator and the electrical controls of the electrical preheating system are arranged outside said furnace. Emetteur de rayons infrarouges à brûleur catalytique destiné à être installé dans un four ou analogue comprenant : - un caisson dont une grande face est ouverte ; - une structure catalytique composée d'un élément imprégné d'une matière catalytique de combustion, placé dans un cadre lui-même disposé dans la face ouverte du caisson ; - un organe d'injection d'un gaz combustible situé dans le caisson et débouchant sur la face intérieure de l'élément imprégné, ledit organe étant alimenté en gaz par un tuyau ; - un générateur d'air à turbine envoyant de l'air sous pression dans le caisson qui constitue une chambre de distribution d'air sur toute la surface de l'élément imprégné ; - un système électrique de préchauffage de l'élément imprégné ; - deux consoles solidaires d'une paroi interne du four, entre lesquelles le caisson est monté, l'une des consoles étant en outre assemblée à une embase à laquelle est fixé le carter de la turbine du générateur d'air, ladite turbine étant calée sur un arbre orienté perpendiculairement à la direction générale du caisson en vue de traverser la cloison sur laquelle les consoles sont fixées pour coopérer avec un moteur d'entraînement fixé à la face extérieure de ladite cloison, tandis que le tuyau d'alimentation en gaz et les conducteurs électriques du système de préchauffage traversent également la paroi pour aboutir à un coffret de commande fixé sur la face extérieure de ladite paroi. Infrared ray emitter with catalytic burner intended for installation in an oven or the like comprising: - a box with a large open side; - A catalytic structure composed of an element impregnated with a catalytic combustion material, placed in a frame itself disposed in the open face of the box; a member for injecting a combustible gas situated in the box and opening onto the internal face of the impregnated element, said member being supplied with gas by a pipe; - A turbine air generator sending pressurized air into the box which constitutes an air distribution chamber over the entire surface of the impregnated element; - an electrical system for preheating the impregnated element; - two brackets secured to an internal wall of the oven, between which the box is mounted, one of the consoles being further assembled to a base to which the casing of the air generator turbine is fixed, said turbine being wedged on a shaft oriented perpendicular to the general direction of the box in view to pass through the partition on which the brackets are fixed to cooperate with a drive motor fixed to the outer face of said partition, while the gas supply pipe and the electrical conductors of the preheating system also pass through the wall to reach to a control box fixed to the external face of said wall. Emetteur de rayons infrarouges à brûleur catalytique suivant la revendication 3, dans lequel le caisson est monté orientable par rapport aux consoles.Infrared ray emitter with catalytic burner according to claim 3, in which the box is mounted orientable relative to the brackets.
EP96420083A 1995-07-20 1996-03-14 Infrared rays emitter with a catalytic burner Expired - Lifetime EP0754911B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US504946 1995-07-20
US08/504,946 US5586877A (en) 1995-07-20 1995-07-20 Infrared ray emitters with catalytic burner

Publications (3)

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EP0754911A2 true EP0754911A2 (en) 1997-01-22
EP0754911A3 EP0754911A3 (en) 1998-06-03
EP0754911B1 EP0754911B1 (en) 2001-12-12

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EP96420083A Expired - Lifetime EP0754911B1 (en) 1995-07-20 1996-03-14 Infrared rays emitter with a catalytic burner

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US (1) US5586877A (en)
EP (1) EP0754911B1 (en)
JP (1) JP3098187B2 (en)
AT (1) ATE210798T1 (en)
DE (1) DE69617822T2 (en)

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WO2013174383A1 (en) * 2012-05-21 2013-11-28 Mærsk Olie Og Gas As On-site drying and curing of paint systems using catalytic infrared radiators
WO2015107296A1 (en) 2014-01-16 2015-07-23 Sunkiss Matherm Radiation Air-recycling ventilation assembly for an infrared radiation emitter, with temperature control
CN110979871A (en) * 2019-10-23 2020-04-10 湖州市练市三峰线缆厂 Automatic enameled wire packaging line and packaging process thereof

Also Published As

Publication number Publication date
US5586877A (en) 1996-12-24
JP3098187B2 (en) 2000-10-16
ATE210798T1 (en) 2001-12-15
DE69617822D1 (en) 2002-01-24
DE69617822T2 (en) 2002-08-14
EP0754911A3 (en) 1998-06-03
JPH0929156A (en) 1997-02-04
EP0754911B1 (en) 2001-12-12

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